<!doctype html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>Ping Pong Delay</title>

		<meta
			name="viewport"
			content="width=device-width, initial-scale=1, maximum-scale=1"
		/>
		<link
			rel="icon"
			type="image/png"
			sizes="174x174"
			href="./favicon.png"
		/>

		<script src="https://cdnjs.cloudflare.com/ajax/libs/webcomponentsjs/2.4.3/webcomponents-bundle.js"></script>
		<link
			href="https://fonts.googleapis.com/css?family=Material+Icons&display=block"
			rel="stylesheet"
		/>
		<script src="../build/Tone.js"></script>
		<script src="./js/tone-ui.js"></script>
		<script src="./js/components.js"></script>
	</head>
	<body>
		<tone-example label="Ping Pong Delay">
			<tone-loader></tone-loader>

			<div slot="explanation">
				A Ping Pong Delay is a stereo feedback delay where the delay
				bounces back and forth between the left and right channels. Hit
				the button to trigger a snare sample into the effect.
				<br /><br />
				<a
					href="https://tonejs.github.io/docs/latest/classes/PingPongDelay"
					>Tone.PingPongDelay</a
				>
				docs.
			</div>

			<div id="content">
				<tone-momentary-button></tone-momentary-button>
			</div>
		</tone-example>

		<script type="text/javascript">
			// the feedback delay
			const feedbackDelay = new Tone.PingPongDelay({
				delayTime: "8n",
				feedback: 0.6,
				wet: 0.5,
			}).toDestination();

			// play a snare sound through it
			const player = new Tone.Player(
				"https://tonejs.github.io/audio/drum-samples/CR78/snare.mp3"
			).connect(feedbackDelay);

			const toneMeter = new Tone.Meter({ channelCount: 2 });
			feedbackDelay.connect(toneMeter);

			meter({
				tone: toneMeter,
				parent: document.querySelector("#content"),
			});

			document
				.querySelector("tone-momentary-button")
				.addEventListener("down", () => player.start());
			document
				.querySelector("tone-momentary-button")
				.addEventListener("up", () => player.stop());
		</script>
	</body>
</html>
